Subject:
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Re: Line Tracker/Follower
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 15 Mar 2000 04:46:27 GMT
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Viewed:
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934 times
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In lugnet.robotics, Kevin Barnard writes:
> OK, so I am a dunce. My 8th grade robotics class, and myself, can't make and
> program a line follower that works!!! I tried the one in the amusement park,
> and it didn't work. We can get it to react to one part correctly, but not to
> react to both directions (whether on light or dark) correctly.
>
> We are using Robolab 1.5
>
> any help out there?
The following Robolab 1.5 program assumes the bot will be started with the
light sensor on the black line:
Begin
Light Container (into red)
Add to Container 6 (red container)
Motor A Forward (power 2)
Stop C
Red Land
Light Sensor Fork (w light sensor input, and red container as Compare to)
(Greater than fork)
Stop A
Motor C Forward (power 2)
(Less than fork)
Motor A Forward (power 2)
Stop C
Fork Merge
Red Jump
End
This simplistic program tracks a line ok, but when it looses the line it may
not find it again. You can add a timer fork to execute another routine if a
black line cannot be found within a given time.
Dave Baum in his book Definitive Guide to Lego Mindstorms covered basic line
following in Chapter 8. On the CD with the book, there are several example
programs for a line follower in both Robolab 1.5 and 2.0 (Thanks to Ben Erwin
at Tufts!)
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Message is in Reply To:
 | | Line Tracker/Follower
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| OK, so I am a dunce. My 8th grade robotics class, and myself, can't make and program a line follower that works!!! I tried the one in the amusement park, and it didn't work. We can get it to react to one part correctly, but not to react to both (...) (25 years ago, 14-Mar-00, to lugnet.robotics)
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